mpv/osdep/subprocess.c

/*
 * This file is part of mpv.
 *
 * mpv is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * mpv is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "common/common.h"
#include "common/msg.h"
#include "common/msg_control.h"

#include "subprocess.h"

const char *mp_subprocess_err_str(int num)
{
    // Note: these are visible to the public client API
    switch (num) {
    case MP_SUBPROCESS_OK:              return "success";
    case MP_SUBPROCESS_EKILLED_BY_US:   return "killed";
    case MP_SUBPROCESS_EINIT:           return "init";
    case MP_SUBPROCESS_EUNSUPPORTED:    return "unsupported";
    case MP_SUBPROCESS_EGENERIC:        // fall through
    default:                            return "unknown";
    }
}

void mp_subprocess(struct mp_log *log,
                   struct mp_subprocess_opts *opts,
                   struct mp_subprocess_result *res)
{
    mp_verbose(log, "Starting subprocess: [%s", opts->args[0]);
    char **arg = &opts->args[1];
    while (*arg)
        mp_verbose(log, ", %s", *arg++);
    mp_verbose(log, "]\n");
    mp_subprocess2(opts, res);
    if (res->error < 0) {
        int lev = res->error == MP_SUBPROCESS_EKILLED_BY_US ? MSGL_V : MSGL_ERR;
        mp_msg(log, lev, "Subprocess failed: %s\n", mp_subprocess_err_str(res->error));
    }
}